First beta test discovery…

The tap pad keys are too small. That was the comment from two testers. And nothing else. One person did complain about the buzzer being too jolting, but I like it that way. Call it conditioned response: You learn the number well or else you get buzzed.

I went ahead and increased the size of the keys as much as I could without impacting the other elements of the design (compare to the older size in the lower picture):